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-rw-r--r--fuel/deploy/setup_vfuel.py143
1 files changed, 143 insertions, 0 deletions
diff --git a/fuel/deploy/setup_vfuel.py b/fuel/deploy/setup_vfuel.py
new file mode 100644
index 0000000..65ee013
--- /dev/null
+++ b/fuel/deploy/setup_vfuel.py
@@ -0,0 +1,143 @@
+import sys
+from lxml import etree
+import os
+
+import common
+from dha import DeploymentHardwareAdapter
+
+exec_cmd = common.exec_cmd
+err = common.err
+log = common.log
+check_dir_exists = common.check_dir_exists
+check_file_exists = common.check_file_exists
+check_if_root = common.check_if_root
+
+VFUELNET = '''
+iface vfuelnet inet static
+ bridge_ports em1
+ address 10.40.0.1
+ netmask 255.255.255.0
+ pre-down iptables -t nat -D POSTROUTING --out-interface p1p1.20 -j MASQUERADE -m comment --comment "vfuelnet"
+ pre-down iptables -D FORWARD --in-interface vfuelnet --out-interface p1p1.20 -m comment --comment "vfuelnet"
+ post-up iptables -t nat -A POSTROUTING --out-interface p1p1.20 -j MASQUERADE -m comment --comment "vfuelnet"
+ post-up iptables -A FORWARD --in-interface vfuelnet --out-interface p1p1.20 -m comment --comment "vfuelnet"
+'''
+VM_DIR = 'baremetal/vm'
+FUEL_DISK_SIZE = '30G'
+IFACE = 'vfuelnet'
+INTERFACE_CONFIG = '/etc/network/interfaces'
+
+class VFuel(object):
+
+ def __init__(self, storage_dir, dha_file):
+ self.dha = DeploymentHardwareAdapter(dha_file)
+ self.storage_dir = storage_dir
+ self.parser = etree.XMLParser(remove_blank_text=True)
+ self.fuel_node_id = self.dha.get_fuel_node_id()
+ self.file_dir = os.path.dirname(os.path.realpath(__file__))
+ self.vm_dir = '%s/%s' % (self.file_dir, VM_DIR)
+
+ def setup_environment(self):
+ check_if_root()
+ check_dir_exists(self.vm_dir)
+ self.setup_networking()
+ self.delete_vm()
+ self.create_vm()
+
+ def setup_networking(self):
+ with open(INTERFACE_CONFIG) as f:
+ data = f.read()
+ if VFUELNET not in data:
+ log('Appending to file %s:\n %s' % (INTERFACE_CONFIG, VFUELNET))
+ with open(INTERFACE_CONFIG, 'a') as f:
+ f.write('\n%s\n' % VFUELNET)
+ if exec_cmd('ip link show | grep %s' % IFACE):
+ log('Bring DOWN interface %s' % IFACE)
+ exec_cmd('ifdown %s' % IFACE, False)
+ log('Bring UP interface %s' % IFACE)
+ exec_cmd('ifup %s' % IFACE, False)
+
+ def delete_vm(self):
+ vm_name = self.dha.get_node_property(self.fuel_node_id, 'libvirtName')
+ r, c = exec_cmd('virsh dumpxml %s' % vm_name, False)
+ if c > 0:
+ log(r)
+ return
+ self.undefine_vm_delete_disk(r, vm_name)
+
+ def undefine_vm_delete_disk(self, printout, vm_name):
+ disk_files = []
+ xml_dump = etree.fromstring(printout, self.parser)
+ disks = xml_dump.xpath('/domain/devices/disk')
+ for disk in disks:
+ sources = disk.xpath('source')
+ for source in sources:
+ source_file = source.get('file')
+ if source_file:
+ disk_files.append(source_file)
+ log('Deleting VM %s with disks %s' % (vm_name, disk_files))
+ exec_cmd('virsh destroy %s' % vm_name, False)
+ exec_cmd('virsh undefine %s' % vm_name, False)
+ for file in disk_files:
+ exec_cmd('rm -f %s' % file)
+
+ def create_vm(self):
+ temp_dir = exec_cmd('mktemp -d')
+ vm_name = self.dha.get_node_property(self.fuel_node_id, 'libvirtName')
+ vm_template = self.dha.get_node_property(self.fuel_node_id,
+ 'libvirtTemplate')
+ disk_path = '%s/%s.raw' % (self.storage_dir, vm_name)
+ exec_cmd('fallocate -l %s %s' % (FUEL_DISK_SIZE, disk_path))
+ self.define_vm(vm_name, vm_template, temp_dir, disk_path)
+ exec_cmd('rm -fr %s' % temp_dir)
+
+ def define_vm(self, vm_name, vm_template, temp_dir, disk_path):
+ log('Creating VM %s with disks %s' % (vm_name, disk_path))
+ temp_vm_file = '%s/%s' % (temp_dir, vm_name)
+ exec_cmd('cp %s/%s %s' % (self.vm_dir, vm_template, temp_vm_file))
+ with open(temp_vm_file) as f:
+ vm_xml = etree.parse(f)
+ names = vm_xml.xpath('/domain/name')
+ for name in names:
+ name.text = vm_name
+ uuids = vm_xml.xpath('/domain/uuid')
+ for uuid in uuids:
+ uuid.getparent().remove(uuid)
+ disks = vm_xml.xpath('/domain/devices/disk')
+ for disk in disks:
+ sources = disk.xpath('source')
+ for source in sources:
+ source.set('file', disk_path)
+ with open(temp_vm_file, 'w') as f:
+ vm_xml.write(f, pretty_print=True, xml_declaration=True)
+ exec_cmd('virsh define %s' % temp_vm_file)
+
+
+def usage():
+ print '''
+ Usage:
+ python setup_vfuel.py <storage_directory> <dha_file>
+
+ Example:
+ python setup_vfuel.py /mnt/images dha.yaml
+ '''
+
+def parse_arguments():
+ if len(sys.argv) != 3:
+ log('Incorrect number of arguments')
+ usage()
+ sys.exit(1)
+ storage_dir = sys.argv[-2]
+ dha_file = sys.argv[-1]
+ check_dir_exists(storage_dir)
+ check_file_exists(dha_file)
+ return storage_dir, dha_file
+
+def main():
+ storage_dir, dha_file = parse_arguments()
+
+ vfuel = VFuel(storage_dir, dha_file)
+ vfuel.setup_environment()
+
+if __name__ == '__main__':
+ main()